<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>Chat</title><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width,initial-scale=1"><link rel="stylesheet" href="/js/bootstrap/dist/css/bootstrap.min.css"><link rel="stylesheet" href="/css/main.min.css"><!-- HTML5 Shim 和 Respond.js 用于让 IE8 支持 HTML5元素和媒体查询 --><!-- 注意： 如果通过 file://  引入 Respond.js 文件，则该文件无法起效果 --><!--[if lt IE 9]>
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